Malicious PDF — malware analysis report

Static analysis result for SHA-256 48198be82e3d840b…

MALICIOUS

PDF

36.7 KB Created: 2020-08-30 03:56:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f4e9712ee14664bef9253bac97b05a9a SHA-1: fcac0fb3225608cd44a1c8618ab6cd7a07baf9dd SHA-256: 48198be82e3d840ba700f126c17adae1f8084d6de1a1f1d51231b0f39b140d5f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a prominent link to 'ttraff.cc', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'major payne movie free', suggesting a lure to entice users to click the malicious link. The presence of a mass external PDF link farm further indicates a malicious intent to distribute links to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/wix?keyword=major+payne+movie+free
    • https://static.usrfiles.com/ugd/d2751c_93908e7a89dd43598369b6ea816dc2f3.pdf
    • https://static.usrfiles.com/ugd/b8c837_bcd678c7ef524c07bc309c103da931d5.pdf
    • https://static.usrfiles.com/ugd/353d00_7807b909bbe64769a97bebe6f3134ebd.pdf
    • https://static.usrfiles.com/ugd/b8c837_e36fb5fe9e074d02bd5680be6ef6f5ae.pdf
    • https://static.usrfiles.com/ugd/97aff7_5ed90b4d252e43ad9f4c0013f0711eaf.pdf
    • https://static.usrfiles.com/ugd/98e298_e9a57bbcde684689832d3c637cf18162.pdf
    • https://static.usrfiles.com/ugd/dd4472_9a38292a7f3f490b9d833fa3557ca61e.pdf
    • https://static.usrfiles.com/ugd/b8c837_275cda56b0994275b542f2aee5bec5c1.pdf
    • https://static.usrfiles.com/ugd/b8c837_23d4e0d7390145788bea8d2e38bd1cc9.pdf
    • https://static.usrfiles.com/ugd/ddb60a_7a72003829ee4732a48a153297fc984e.pdf
    • https://static.usrfiles.com/ugd/93c935_be24442254864bbd8249aaee43e43142.pdf
    • https://cdn.shopify.com/s/files/1/0435/0777/7702/files/mediocratie_alain_deneault.pdf
    • https://cdn.shopify.com/s/files/1/0433/7057/8070/files/64033954207.pdf
    • https://cdn.shopify.com/s/files/1/0439/5086/6590/files/2013_chrysler_town_and_country_touring_l_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/1997/files/bejuginanizeponejalinibi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d72.bin
246e1ea3c0455da6d124acc6748bd0e9635452980ba24f55a38aba9540a63c03
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D72 5080 bytes
font_01_sfnt_off00005ec3.bin
404126919a71020263a06c4dee70e71077a7aa9c146dcb7f12fe3a68ddb94053
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC3 11068 bytes